Climate averages 1991–2020
Ruiru weather
in August.
A warm, very dry month: the joint 10th warmest and the 3rd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Ruiru: daytime highs average 22.2°C and nights cool to about 12.6°C. By daytime temperature it is the joint 10th warmest of the 12 months.
Expect about 12 mm of rain on roughly 3 days, which makes August a very dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 05 min on an average August day.
The nearest other city in this atlas is Thika (17 km away). In August its highs average 22.5°C, about as warm as Ruiru, with 32 mm of rain.
Among the 37 cities listed in Kenya, Ruiru ranks 26th of 37 for the warmest August highs and 6th of 37 for the driest August (rainfall, lowest first). The mean August high of those 37 cities is 24.3°C; Ruiru is 2.1°C cooler than that mean.
From August to September, average highs rise by 2.1°C to 24.3°C, and monthly rainfall falls from 12 mm to 9.5 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Ruiru climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.1°C13.6°C | 13.6°C | 30 | 6.8 | 12.212 h |
| February | 26.6°C14.1°C | 14.1°C | 21 | 5.1 | 12.112 h |
| March | 26.4°C15.1°C | 15.1°C | 58 | 12.7 | 12.112 h |
| April | 24.3°C15.7°C | 15.7°C | 120 | 22.0 | 12.112 h |
| May | 23.2°C14.8°C | 14.8°C | 74 | 15.1 | 12.112 h |
| June | 22.2°C13.4°C | 13.4°C | 28 | 5.7 | 12.112 h |
| July | 21.7°C12.3°C | 12.3°C | 8.5 | 2.0 | 12.112 h |
| August, selected | 22.2°C12.6°C | 12.6°C | 12 | 2.6 | 12.112 h |
| September | 24.3°C13.2°C | 13.2°C | 9.5 | 2.1 | 12.112 h |
| October | 24.9°C14.6°C | 14.6°C | 44 | 9.6 | 12.112 h |
| November | 22.9°C14.8°C | 14.8°C | 123 | 21.1 | 12.212 h |
| December | 23.5°C14.0°C | 14.0°C | 57 | 13.7 | 12.212 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Thika in AugustKenya · 17 kmHigh 22.5°C · Low 13.2°C · 32 mm rain
- Nairobi in AugustKenya · 22 kmHigh 22.3°C · Low 12.6°C · 21 mm rain
- Karuri (Kiambu County), Kenya in AugustKenya · 23 kmHigh 20.2°C · Low 11.1°C · 21 mm rain
- Mlolongo in AugustKenya · 28 kmHigh 22.4°C · Low 12.9°C · 15 mm rain
- Kikuyu in AugustKenya · 35 kmHigh 19.9°C · Low 10.9°C · 21 mm rain
- Ongata Rongai in AugustKenya · 35 kmHigh 21.9°C · Low 12.6°C · 15 mm rain
- Limuru in AugustKenya · 36 kmHigh 18.5°C · Low 9.3°C · 46 mm rain
- Kitengela in AugustKenya · 37 kmHigh 22.6°C · Low 13.3°C · 15 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Ruiru) is explained once on the Ruiru year overview and on the Sources, method and limits page.